A look at what is currently available on eBay

TEKTRONIX 335 Oscilloscope Operator & Service Manuals
US $14.95

TEKTRONIX 2221 DIGITAL STORAGE OSCILLOSCOPE SERVICE MANUAL 070-6531-00 GROUP 41
US $50.00

TEKTRONIX 7633/R7633 Storage Oscilloscope w/ options Service Instruction Manual
US $19.99

Tektronix TEK 465M Oscilloscope Service – ops Manual CD
US $11.99

Tektronix 2235 AN/USM488 Oscilloscope OPERATOR’S + [...]